When you get your MEG CCR,install the STA,BP,then the CL, the one with the MGB,OPV and ADV on the left side. Don't forget to hook the hose with the DIV to the ADV. During Positive test close DSV and the OPV. Check PSI with SPG.
The wonderful world of abbreviation
Welcome to the Rebreather World.
Cheers
HL